Well as you mention future mods..I've got some beefier sounds getting installed soon.
As for engine,,,I really would love to get my hands on an airbox (like the ones discussed in thread here).
Cosmetically, an ACS rear diffuser would be ace. Front a nice splitter if I could find one...
Once the discs and pads are done..BBK for the front.
That's about it.
AND I love Skoda's. My last company used a fleet of them and they were in my opinion up there with the best.
P.S Anytime you come to Scotland, I will gladly let you take it for a wander,